i. Correct item from B matching sodium chloride

ii. Correct item from B matching ammonium ion and so on.

Write the equation for each of the following reactions:

i. Sulphur is heated with concentrated sulphuric acid.

ii. Zinc oxide is treated with sodium hydroxide solution.

iii. Ammonium chloride is heated with sodium hydroxide.

iv. Concentrated sulphuric acid is poured over sugar.

v. Magnesium sulphate solution is mixed with barium chloride solution.

i. LPG stands for liquefied petroleum gas. Varieties of LPG are marketed including a
mixture of propane (60%) and butane (40%). If 10 litre of this mixture is burnt,
then find the total volume of carbon dioxide gas added to the atmosphere.
Combustion reactions can be represented as
$$\ce{C3H8 (g) + 5 O2 (g) -> 3CO2 (g) + 4H2O (g) }$$
$$\ce{C4H10 (g) + 13 O2 (g) -> 8CO2 (g) + 10 H2O (g) }$$

ii. Calculate the percentage of nitrogen and oxygen in ammonium nitrate (Relative
molecular mass of ammonium nitrate is 80, H = 1, N = 14, O = 16).

Give the equations for the following conversions A to E.

The questions below are related to the manufacture of ammonia.